QUESTION $1$: A rigid container has a total of $5m^3$ of water with $0\mathrm{.}05m^3$ of saturatedQUESTION $1$ : A rigid container has a total of $5m^3$ of water with $0\mathrm{.}05m^3$ of saturated

liquid and $4\mathrm{.}95m^3$ of saturated vapor at $0\mathrm{.}1$ MPa $.$ Heat is transferred until the

vessel is filled with saturated vapor

a$.$ At state $1,$ find:

$v_g$

Mass of the liquid

Mass of the gas

$x$

$U_1(kJ)$

$U_2(kJ)$

b$.$ At state $2,$ find

c$.$ Write a simplified first law for this problem:

d$.$ Find the total heat transfer for the process in kJ$.$

liquid and $4\mathrm{.}95m^3$ of saturated vapor at $0\mathrm{.}1$ MPa $.$ Heat is transferred until the

vessel is filled with saturated vapor

a$.$ At state $1,$ find:

$v_f$

$v_g$

Mass of the liquid

Mass of the gas

$x$

$U_1(kJ)$

b$.$ At state $2,$ find

$U_2(kJ)$

c$.$ Write a simplified first law for this problem:

d$.$ Find the total heat transfer for the process in kJ$.$

QUESTION $2$: A $250$ kg piece of copper is heated from $25$ C to $300$ C $.$ How much total

heat is required $(kJ)?$

QUESTION $3$: $5$ kg of R$134$a at $800$ kPa and $70C$ is cooled at constant pressure until

it exists as liquid at $15$C$.$ Determine the amount of heat loss.